This walk takes you into some rugged country. The highlight must be the superb views across the Chamonix valley to Mont Blanc but equally impressive are the views west towards the Rochers des Fiz. The paths are well constructed with good signage. The Refuge de Bel Lachat offers an excellent place to relax and enjoy the scenery with excellent food.

Take the Télécabine from Chamonix to Planpraz and then on by cable car to Le Brévent. Alternatively take the Télécabine from Chamonix to Planpraz and then follow Walk 6010 to Le Brévent. Exit the cable car station and take time to enjoy the view. Of particular note are the retreating glaciers on the other side of the valley. Regular visitors will realise how quickly these are receding. To start the walk, take the path south. The route loses height quickly as the path descends in wide loops down the mountainside. The view ahead is good with the Aiguillette du Brévent the salient feature.

The Lac du Brévent can be seen below on your right. Shortly afterwards you reach a path junction. The TMB (Tour Mont Blanc) is straight on with a spur path leading down to the Lake. This is a worthwhile excursion although you do lose nearly 150 metres of height, which must be regained before you continue. The Lake occupies a wonderful rocky landscape. The view north is superb and makes a fitting backdrop for a picnic or rest. After visiting the lake, retrace your steps to the main path and turn right to follow the TMB once more.

You descend further to reach another junction of paths, Turn left here and descend with the TMB. A short way further you reach another junction. The TMB continues straight on but you turn left for the Refuge de Bel Lachat. This lies a few minutes along this path.